6478874841438 has 48 divisors (see below), whose sum is σ = 14075745684000. Its totient is φ = 2153754904320.

The previous prime is 6478874841421. The next prime is 6478874841451. The reversal of 6478874841438 is 8341484788746.

It is a happy number.

6478874841438 is a `hidden beast` number, since 6 + 4 + 7 + 88 + 74 + 8 + 41 + 438 = 666.

It is a super-2 number, since 2×6478874841438² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17844738 + ... + 18204186.

It is an arithmetic number, because the mean of its divisors is an integer number (293244701750).

Almost surely, 2^{6478874841438} is an apocalyptic number.

6478874841438 is an abundant number, since it is smaller than the sum of its proper divisors (7596870842562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6478874841438 is a wasteful number, since it uses less digits than its factorization.

6478874841438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362177 (or 362174 counting only the distinct ones).

The product of its digits is 924844032, while the sum is 72.

The spelling of 6478874841438 in words is "six trillion, four hundred seventy-eight billion, eight hundred seventy-four million, eight hundred forty-one thousand, four hundred thirty-eight".